Hello,
I've researched the forum and see many posts regarding this heater but I have been unable to track down the source of my particular issue. I have the Sta-Rite NG heater on my pool. It is old but its works (intermittently). My issue is that the heater will reach a certain temp and then cycle on and off. During the course of cycling on and off, the heater will not display any error codes and none of the LED indicators on the back of the board are illuminated. I have replaced all sensors to include stack sensor, the thermistor, both high limit switches, the thermal regulator, the water pressure switch, the air flow switch, the control board (twice), the membrane (since the new board has a different digital readout). I checked the burner to see if there is a leak in the chamber but it's dry.
The heater fires up and runs without fail up to about 80 degrees. From that point....the cycling starts. The burner cuts off and then re-fires about 20 seconds later. This will continue non stop, climbing in temp slowly but the cycling on and off isn't necessarily the most effective way of heating. I checked the control board programing, the high limit is set to 101 currently but I couldn't get close to that temp it if I wanted to. I checked my stack sensor and made sure it was set up correctly on the control board as well. I ran jumpers past the high limit sensors just to make sure I didn't have a faulty new sensor. There isn't much left to replace here but I am lost trying to figure out what I should try next. Any thoughts, guidance, suggestions would be appreciated.
Thank you in advance for any help!
Don
I've researched the forum and see many posts regarding this heater but I have been unable to track down the source of my particular issue. I have the Sta-Rite NG heater on my pool. It is old but its works (intermittently). My issue is that the heater will reach a certain temp and then cycle on and off. During the course of cycling on and off, the heater will not display any error codes and none of the LED indicators on the back of the board are illuminated. I have replaced all sensors to include stack sensor, the thermistor, both high limit switches, the thermal regulator, the water pressure switch, the air flow switch, the control board (twice), the membrane (since the new board has a different digital readout). I checked the burner to see if there is a leak in the chamber but it's dry.
The heater fires up and runs without fail up to about 80 degrees. From that point....the cycling starts. The burner cuts off and then re-fires about 20 seconds later. This will continue non stop, climbing in temp slowly but the cycling on and off isn't necessarily the most effective way of heating. I checked the control board programing, the high limit is set to 101 currently but I couldn't get close to that temp it if I wanted to. I checked my stack sensor and made sure it was set up correctly on the control board as well. I ran jumpers past the high limit sensors just to make sure I didn't have a faulty new sensor. There isn't much left to replace here but I am lost trying to figure out what I should try next. Any thoughts, guidance, suggestions would be appreciated.
Thank you in advance for any help!
Don
